Description: 信号与信息处理——阵列信号处理DOA估计的matlab算法，这是线性调频信号的稀疏分解算法，对信噪比的变化-Signal and information processing- array signal processing matlab algorithm for DOA estimation, which is a linear FM signal sparse decomposition algorithm, on the signal to noise ratio changes Platform: |
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Author:彭华 |
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Description: 信号与信息处理——阵列信号处理DOA估计的matlab算法，这是线性调频信号的稀疏分解算法，wigner_will分布-Signal and information processing- array signal processing matlab algorithm for DOA estimation, which is a linear FM signal sparse decomposition algorithm, wigner_will distribution Platform: |
Size: 1024 |
Author:彭华 |
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Description: ESPRIT算法是一种用于信号到来角(DOA)估计的直接求解方法,本程序中含有3种不同的算法均为自编-ESPRIT algorithm is used to signal the arrival angle (DOA) estimation of the direct methods, its performance at low signal to noise ratio (SNR) and signal correlation will seriously undermine Platform: |
Size: 2048 |
Author:苗俊 |
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Description: 采用8个阵元，利用CAPON算法，进行DOA，画出波达方向估计误差随着信噪比变化的曲线图-Eight elements, the use of the CAPON algorithm of DOA draw the DOA estimation error changes with the SNR curve Platform: |
Size: 1024 |
Author:huahua8384 |
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Description: 采用8个阵元，利用music算法，进行DOA，画出波达方向估计误差随着信噪比变化的曲线图-Eight elements, the use of music algorithm of DOA draw the DOA estimation error changes with the SNR curve Platform: |
Size: 1024 |
Author:huahua8384 |
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Description: MIMO雷达模型下一种子空间谱估计方法，采用过估计的方法，以避免信源数估计的问题，直接对数据协方差矩阵进行变换，从而构造了信号子空间投影矩阵和噪声子空间投影矩阵，不需要像经典的MUSIC一样对其进行特征分解，完全避开了在一般非理想情况下MUSIC算法必须面对的识别小特征值与大特征值的麻烦，降低了复杂度，而且该方法不受快拍数的影响，在相干源情况下也能准确的估计目标的入射角，不会出现伪峰。-A subspace based DOA (Direction-Of-Arrival) estimation method for MIMO (Multiple-Input Multiple-Output) radar is studied in this paper. By transforming the data covariance matrix, we can construct the projection matrix of signal subspace and noise subspace. The computation complexity of the algorithm is reduced as it does not need to perform eigendecomposition. By using the over estimated theory, this algorithm avoid estimating the number of signal sources and can keep a good estimate performance in the case of lower SNR (Signal-to-Noise Ratios) and multi-target. Platform: |
Size: 66560 |
Author:Peng Zhe |
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Description: 一种未知信源数的高分辨DOA 估计算法：众多性能优良的超分辨波达方向(DOA)估计算法通常需要预先判定信源数目，然而，现有的信源数估计
算法在有限采样快拍条件下，估计性能随着信噪比的降低而下降，错误概率也相应增加，最终导致DOA 估计失败。
该文提出一种超分辨的DOA 估计算法，此算法不需要预判信源个数和进行特征值分解，同时在时变环境中，针对
快拍数较少的情况下，依然保持较高的角度分辨能力，可以被认为是综合了Capon 法和MUSIC 法的优点。-Algorithm on High Resolution DOA Estimation
without Sources Number：Many of the super resolution DOA(Direction-Of-Arrival) estimation algorithms presume the number of
signal sources. Since the sample snapshot is limited, however, the available algorithms on source number estimation
may fail at lower SNR. In this paper, a novel algorithm for high resolution DOA estimation is proposed, which not
only skips sources number estimation and EVD, but also behaves satisfactorily with a few snapshot, it may be
viewed as a combination of merit of conventional Capon and MUSIC method. Platform: |
Size: 647168 |
Author:可难 |
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Description: 提出了一种新的宽带DOA估计方法:频域子空间正交性测试方法(TOFS:Test of orthogonality of frequency sub- space)。该方法通过同时测试频域信号共同带宽内各频段噪声子空间与阵列流形之间的正交性来进行DOA估计。与宽带相干信号子空间方法不同,TOFS方法不需要任何初始值的预估及聚焦操作。与宽带非相干信号子空间方法也不同,TOFS方法同时测试各频段噪声子空间与阵列流形之间的正交性。本文仿真了TOFS与IMUSIC、CSSM、TOPS的性能比较。仿真结果表明TOFS方法在中等信噪比以上时有较好的性能,且避免了TOPS方法中常出现的伪峰。 -Proposed a new broadband DOA estimation methods: subspace orthogonal frequency domain test methods (TOFS: Test of orthogonality of frequency sub-space). The method by simultaneously testing the frequency domain signal bandwidth of each band noise common sub-orthogonality between space and the array manifold to be DOA estimates. And broadband coherent signal subspace different methods, TOFS method does not require any initial estimate and focusing operation values. And broadband incoherent signal subspace methods are different, TOFS method for simultaneous testing of each band orthogonal noise subspace and the array manifold between. This paper compares the performance TOFS simulation and IMUSIC, CSSM, TOPS is. Simulation results show that the method TOFS better performance when more moderate SNR and spurious peaks TOPS method avoids the often occur. Platform: |
Size: 442368 |
Author:yushuhua |
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Description: 对波达方向进行估计，通过MUSIC算法估计波达方向，利用MATLAB进行仿真，观察DOA估计与信噪比的关系-For DOA estimate DOA estimated by MUSIC algorithm using MATLAB simulation, observation DOA Estimation and SNR relationship Platform: |
Size: 11264 |
Author:陈雪 |
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Description: Cram ́ er-Rao bound (CRB) has been formulated in
earlier work for linear, planar and 3-D array configurations. The
formulations developed in prior work, make use of the standard
spatial data model. In this paper, the existence of CRB for the
spherical harmonics data model is first verified. Subsequently, an
expression for stochastic CRB is derived for direction of arrival
(DOA) estimation in spherical harmonics domain. The stochastic
CRBs for azimuth and elevation are plotted at various Signal
to Noise Ratios (SNRs) and snapshots. It is noted that a lower
bound on the CRB is attained at high SNR. A similar observation
is made when larger number of snapshots are used. Platform: |
Size: 147456 |
Author:lalan |
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Description: 基于SVPWM的三电平逆变的matlab仿真，最大信噪比的独立分量分析算法，有CDF三角函数曲线/三维曲线图，对于初学matlab的同学会有帮助，在MATLAB中求图像纹理特征，实现了对10个数字音的识别，通过虚拟阵元进行DOA估计，分析了该信号的时域、频域、倒谱，循环谱等。- Based on SVPWM three-level inverter matlab simulation, SNR largest independent component analysis algorithm, There CDF trigonometric curve/3D graphs, Matlab for beginner students will help, In the MATLAB image texture feature, To achieve the recognition of 10 digital sound, Conducted through virtual array DOA estimation, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Platform: |
Size: 7168 |
Author:mdmhkqt |
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Description: 关于小波的matlab复合分析，包括AHP，因子分析，回归分析，聚类分析，是路径规划的实用方法，最大信噪比的独立分量分析算法，数据包传送源码程序，采用偏最小二乘法，包含特征值与特征向量的提取、训练样本以及最后的识别，通过虚拟阵元进行DOA估计。- Matlab wavelet analysis on complex, Including AHP, factor analysis, regression analysis, cluster analysis, Is a practical method of path planning, SNR largest independent component analysis algorithm, Data packet transfer source program, Partial least squares method, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Conducted through virtual array DOA estimation. Platform: |
Size: 6144 |
Author:djrhk |
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Description: 计算互信息非常有用的一组程序,通过虚拟阵元进行DOA估计，最大信噪比的独立分量分析算法。- Mutual information is useful to calculate a set of procedures, Conducted through virtual array DOA estimation, SNR largest independent component analysis algorithm. Platform: |
Size: 6144 |
Author:hengmunlielan |
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Description: 低信噪比条件下的高分辨DOA估计算法,提出一种基于多级维纳滤波器(MSWF)的信号波达方向(DOA)估计算法。通过测试信号子空间的估计值与噪声子空间的正交性实
现 DOA粗估计，通过测试MSWF 分解的互相关函数实现信号 DOA 的精估计。仿真实验表明，在低信噪比条件下，该算法比已有的子空
间类算法有更好的分辨率和误差性能。-Put forward a kind of multistage Wiener filter (MSWF) based on the signal direction of arrival (DOA) estimation algorithm. By testing the orthogonality between the estimated values of the signal subspace and the noise subspace
Now DOA coarse estimation, by testing the MSWF decomposition of the cross-correlation function to achieve accurate estimation of signal DOA. Simulation results show that the proposed algorithm is more efficient than the existing subspace in low SNR conditions
The inter class algorithm has better resolution and error performance. Platform: |
Size: 521216 |
Author:雨果 |
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Description: 信噪比，阵列间距，阵元数，快拍数对DOA估计中的MVM、MEM、MNM、FBLP算法的影响(The influence of signal-to-noise ratio, array spacing, array element number and snapshot number on MVM, MEM, MNM and FBLP algorithms in DOA estimation) Platform: |
Size: 12288 |
Author:成武桑 |
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